I had a professor who assigned his own book when I was an undergrad, but he specifically didn't get royalties on those copies of the book (they were sold to sch

I had a professor who assigned his own book when I was an undergrad, but he specifically didn't get royalties on those copies of the book (they were sold to school, we had a textbook rental system), and he explained this fact on the syllabus. I thought that was a pretty big thing of him to do, but he was a great guy, so no surprises maybe.